exam Maths Puzzle Numerical Ability

Can someone help me on this?

I need to solve 6x + 4(3x - 2) = 6x + 2

thank you, Lisa

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Two cars leave town A at the same time going in the same direction. The speed of one car is 40 mph, and the speed of the other car is 55 mph. In how many hours will the cars be 45 mi apart?

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